Question:
Which of the following is not an essential amino acid?
Which of the following is not an essential amino acid?
Show Hint
Use the mnemonic "PVT TIM HALL" to remember essential amino acids:
Phenylalanine, Valine, Threonine
Tryptophan, Isoleucine, Methionine
Histidine, Arginine, Leucine, Lysine.
Phenylalanine, Valine, Threonine
Tryptophan, Isoleucine, Methionine
Histidine, Arginine, Leucine, Lysine.
Updated On: Jun 24, 2026
- Methionine
- Leucine
- Histidine
- Glutamine
- Tryptophan
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Amino acids are classified as essential if the human body cannot synthesize them and they must be obtained through diet. Non-essential amino acids can be synthesized by the body.
Step 2: Detailed Explanation:
1. The ten essential amino acids are: Valine, Leucine, Isoleucine, Phenylalanine, Tryptophan, Methionine, Threonine, Lysine, Arginine, and Histidine.
2. Options A, B, C, E: These are all in the list of essential amino acids.
3. Glutamine: This is a non-essential amino acid (or conditionally essential during illness), meaning it is normally synthesized by the body in sufficient quantities.
Step 3: Final Answer:
Glutamine is not an essential amino acid.
Amino acids are classified as essential if the human body cannot synthesize them and they must be obtained through diet. Non-essential amino acids can be synthesized by the body.
Step 2: Detailed Explanation:
1. The ten essential amino acids are: Valine, Leucine, Isoleucine, Phenylalanine, Tryptophan, Methionine, Threonine, Lysine, Arginine, and Histidine.
2. Options A, B, C, E: These are all in the list of essential amino acids.
3. Glutamine: This is a non-essential amino acid (or conditionally essential during illness), meaning it is normally synthesized by the body in sufficient quantities.
Step 3: Final Answer:
Glutamine is not an essential amino acid.
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